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US 1,404,086 A · Inventors: VITTORIO BOSCATO

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted January 17, 1922. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 17, 1939.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledNovember 3, 1921
GrantedJanuary 17, 1922
Term endedJanuary 17, 1939
Application number—
Classification (CPC)F02N19/001 +2 more
Length2 pages

Timeline

Timeline From USPTO dates

192219241926192819301932193419361938Application filedNov 3, 1921Patent grantedJan 17, 1922Term endedJan 17, 1939

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